PE22797A1 - Method for molding a plastic container - Google Patents

Method for molding a plastic container

Info

Publication number
PE22797A1
PE22797A1 PE00020996A PE00020996A PE22797A1 PE 22797 A1 PE22797 A1 PE 22797A1 PE 00020996 A PE00020996 A PE 00020996A PE 00020996 A PE00020996 A PE 00020996A PE 22797 A1 PE22797 A1 PE 22797A1
Authority
PE
Peru
Prior art keywords
preform
gas
molded
mold
pressure
Prior art date
Application number
PE00020996A
Other languages
Spanish (es)
Inventor
Kurt H Ruppman
Original Assignee
Kurt H Ruppman
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US41253595A priority Critical
Application filed by Kurt H Ruppman filed Critical Kurt H Ruppman
Publication of PE22797A1 publication Critical patent/PE22797A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/64Heating or cooling preforms, parisons or blown articles
    • B29C49/66Cooling by refrigerant introduced into the blown article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/46Component parts, details or accessories; Auxiliary operations characterised by using a particular environment or blow fluids other than air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • B29C49/4823Moulds with incorporated heating or cooling means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/46Component parts, details or accessories; Auxiliary operations characterised by using a particular environment or blow fluids other than air
    • B29C2049/4602Blowing fluids
    • B29C2049/4605Blowing fluids containing an inert gas, e.g. helium
    • B29C2049/4608Nitrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/64Heating or cooling preforms, parisons or blown articles
    • B29C49/66Cooling by refrigerant introduced into the blown article
    • B29C2049/6607Flushing blown articles
    • B29C2049/6646Flushing blown articles while keeping the final blowing pressure in the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06Injection blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08Biaxial stretching during blow-moulding with or without prestretching
    • B29C49/10Biaxial stretching during blow-moulding with or without prestretching using mechanical means for prestretching
    • B29C49/12Stretching rods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/58Blowing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/90Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof
    • Y10S264/904Maintaining article in fixed shape during heat-setting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397Single layer [continuous layer]

Abstract

ESTA REFERIDA. It is concerned. A UN METODO PARA OBTENER UN ENVASE PLASTICO MOLDEADO A PARTIR DE UNA PREFORMA HECHA DE UN POLIMERO TERMOPLASTICO, QUE COMPRENDE LOS PASOS DE: A)ABLANDAR EL PLASTICO CALENTANDO LA PREFORMA; A method for obtaining a molded plastic container from a preform made of a thermoplastic polymer, comprising the steps of: a) soften plastic heating the preform; B)INTRODUCIR LA PREFORMA, LA CUAL ES DEL GRUPO FORMADO POR EL TEREFTALATO DE POLIETILENO, POLIETILENO, POLIPROPILENO, EN UN MOLDE PARTIDO CUYAS PAREDES SE MANTIENEN CALENTADAS EN EL INTERVALO DE TEMPERATURA DE 130�CA 240�C, PREFERENTEMENTE EN EL INTERVALO DE TEMPERATURA DE 150�CA 177�C; B) introducing the preform, which is of the group comprising polyethylene terephthalate, polyethylene, polypropylene, PARTY IN A MOLD HEATED whose walls are maintained in the range of 240C 130CA TEMPERATURE, preferably in the temperature range DE 150CA 177C; YC)INTRODUCIR UN PRENSADOR EN LA PREFORMA; YC) introducing a pressure into the preform; CARACTERIZADO POR LOS PASOS SIGUIENTES: 1)INYECTAR UN PRIMER GAS EN LA PREFORMA (AIRE Y NITROGENO COMPRIMIDO) DE MANERA DE EXPANDIRLA Y MOLDEARLA CONTRA LAS PAREDES DEL MOLDE, Y MANTENER LA PRESION DENTRO DE LA PREFORMA MOLDEADA DURANTE UN TIEMPO PREDETERMINADO; Characterized by the following steps: 1) injecting a first gas into the preform (AIR AND NITROGEN COMPRESSED) so as to expand it and shape it against the walls of the mold, and maintain pressure within the preform MOLDEADA for a predetermined time; 2)VENTEAR EL PRIMER GAS DE LA PREFORMA MOLDEADA; 2) ventear THE FIRST GAS molded preform; 3)INYECTAR UN SEGUNDO GAS (NITROGENO), DURANTE EL VENTEO, DENTRO DE LA PREFORMA MOLDEADA A UNA PRESION SUPERIOR A 690 KPA, PREFERENTEMENTE SUPERIOR A 2.070 KPA, DE MANERA QUE INGRESE EN EL INTERIOR DE LA PREFORMA A UNA TEMPERATURA MENOR A -50�C, PREFERENTEMENTE INFERIOR A -100�C, PURGANDO Y ENFRIANDO LA PREFORMA MOLDEADA CON EL SEGUNDO GAS DURANTE UN INTERVALO DE TIEMPO PREDETERMINADO, DURANTE EL CUAL LA PREFORMA MOLDEADA SE TRANSFORMA EN EL ENVASE FINAL; 3) injecting a second gas (nitrogen) during venting within the molded preform at a pressure more than 690 kPa, preferably greater than 2,070 KPA, SO ENTER THE INTERIOR preform at a temperature BELOW -50 C, preferably below -100C, purging and cooling the molded preform with the second gas for a predetermined time interval, during which the molded preform BECOMES FINAL CONTAINER; Y 4)LIBERAR EL ENVASE FINAL DEL MOLDE And 4) release CONTAINER END OF THE MOLD
PE00020996A 1995-03-27 1996-03-25 Method for molding a plastic container PE22797A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US41253595A true 1995-03-27 1995-03-27

Publications (1)

Publication Number Publication Date
PE22797A1 true PE22797A1 (en) 1997-08-08

Family

ID=23633394

Family Applications (1)

Application Number Title Priority Date Filing Date
PE00020996A PE22797A1 (en) 1995-03-27 1996-03-25 Method for molding a plastic container

Country Status (6)

Country Link
US (1) US5730914A (en)
KR (1) KR100474784B1 (en)
AR (1) AR001441A1 (en)
CR (1) CR5290A (en)
PE (1) PE22797A1 (en)
TW (1) TW353049B (en)

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US20040173565A1 (en) * 1999-12-01 2004-09-09 Frank Semersky Pasteurizable wide-mouth container
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US20070199916A1 (en) * 2000-08-31 2007-08-30 Co2Pac Semi-rigid collapsible container
US10246238B2 (en) 2000-08-31 2019-04-02 Co2Pac Limited Plastic container having a deep-set invertible base and related methods
US8584879B2 (en) * 2000-08-31 2013-11-19 Co2Pac Limited Plastic container having a deep-set invertible base and related methods
US9969517B2 (en) 2002-09-30 2018-05-15 Co2Pac Limited Systems and methods for handling plastic containers having a deep-set invertible base
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US20060012066A1 (en) * 2001-01-19 2006-01-19 Crane Plastics Company Llc System and method for directing a fluid through a die
US6578368B1 (en) * 2001-01-19 2003-06-17 Crane Plastics Company Llc Cryogenic cooling of extruded and compression molded materials
US20040148965A1 (en) * 2001-01-19 2004-08-05 Crane Plastics Company Llc System and method for directing a fluid through a die
HU0303845A2 (en) 2001-04-19 2004-03-29 Graham Packaging Company, L.P. Multi-purpose container with bottom of plastic containers, and of a bottom
US7543713B2 (en) * 2001-04-19 2009-06-09 Graham Packaging Company L.P. Multi-functional base for a plastic, wide-mouth, blow-molded container
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US20050260370A1 (en) * 2004-05-24 2005-11-24 Graham Packaging Company, L.P. Method for producing heat-set base of a plastic container
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Also Published As

Publication number Publication date
US5730914A (en) 1998-03-24
TW353049B (en) 1999-02-21
KR100474784B1 (en) 2005-06-27
KR970703235A (en) 1997-07-03
AR001441A1 (en) 1997-10-22
CR5290A (en) 1997-12-23

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Legal Events

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FG Grant, registration
FD Application declared void or lapsed